<?php

namespace Sensio\Bundle\HangmanBundle\DependencyInjection;

use Symfony\Component\Config\Definition\Builder\TreeBuilder;
use Symfony\Component\Config\Definition\ConfigurationInterface;

/**
 * This is the class that validates and merges configuration from your app/config files
 *
 * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html#cookbook-bundles-extension-config-class}
 */
class Configuration implements ConfigurationInterface
{
    /**
     * {@inheritDoc}
     */
    public function getConfigTreeBuilder()
    {
        $treeBuilder = new TreeBuilder();
        $rootNode = $treeBuilder->root('sensio_hangman');
        
        $rootNode
                 ->children()
                    ->arrayNode("dictionaries")
                        ->info('List of Dictionarie') // utile pour config:dump-reference SensioHangmanBundle
                        ->example("/path/fichier.txt")
                        ->performNoDeepMerging() //pour ne pas concaterné la config prod et dev
                        ->prototype('scalar')
                            ->validate()
                                ->ifTrue(function($path){return !is_readable($path);})//verification de l'existance du fichier
                                ->thenInvalid('Invalide file path %s')
                            ->end()
                        ->end()
                        ->requiresAtLeastOneElement()
                        ->isRequired()
                    ->end()
                    ->integerNode("word_length")
                        ->min(3)
                        ->max(15)
                        ->defaultValue(8)
                    ->end()
                 ->end();
        
        return $treeBuilder;
    }
}
